Objective: To evaluate the effects of technical-Breath Stacking (BS) and incentive spirometry (IS) on the volume of the chest immediately after and within thirty minutes after the techniques in patients with Parkinson's disease (PD). Methods: This is a study of cross-over. The study investigated 14 patients with mild to moderate PD. The subjects performed the technique Breath-Stacking, incentive spirometry volume and participated in a phase control according to randomization. The volunteers were evaluated by opto-electronic plethysmography in four stages: before, immediately after fifteen and thirty minutes after the completion of the techniques. The investigators used a repeated measures ANOVA with post-hoc Tukey test for parametric variables, and the Friedman test with post-hoc Dunns for nonparametric variables. The level of significance was set at 5%, p <0.05.